Catalog - Data.gov

Found 457 datasets matching "Abundance estimate".

#1 Federal
Supplemental Results from: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population trends
- Organization: Department of the Interior
- Updated: 2024-10-15T00:00:00Z
These data contain the supplementary results corresponding with the journal article: Using mobile acoustic monitoring and false-positive N-mixture models to estimate bat abundance and population...
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Search relevance: 100.38 | Views last month: 1
#2 Federal
AFSC/MML: Distribution and abundance of Southeast Alaska harbor porpoise, 2019
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-01-01T00:00:00.000+00:00
As currently defined, the Southeast Alaska (SEAK) harbor porpoise (Phocoena phocoena) stock ranges from Dixon entrance to Cape Suckling, including inland waterways. Since the early 1990s, the...
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Search relevance: 76.45 | Views last month: 2
#3 Federal
Harbor porpoise (Phocoena phocoena) abundance survey conducted during visual observations from a vessel platform in the coastal waters of Southeast Alaska by the Alaska Fisheries Science Center Cetacean Assessment and Ecology Program from 2019-07-19 to 2019-08-12 (NCEI Accession 0277244)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-04-05T00:00:00.000+00:00
This dataset includes visual line transect survey data collected in the summer of 2019 in the waters of Southeast Alaska. The survey was designed for updating the abundance estimate of harbor...
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Search relevance: 55.96 | Views last month: 0
#4 Federal
Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-01-01T00:00:00.000+00:00
As part of the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) project, the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S....
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Search relevance: 55.11 | Views last month: 0
#5 Federal
Cetacean and sea turtle visual observations using line-transect survey methods aboard a NOAA DeHavilland DHC-6 Twin Otter (TO) aircraft in the Gulf of Mexico, during the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS survey TO17Su) from 6/29/2017 to 8/17/2017.
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-01T00:00:00.000+00:00
As part of the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted aerial surveys of the U.S. continental shelf...
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Search relevance: 54.47 | Views last month: 0
#6 Federal
Cetacean and sea turtle visual observations using line-transect survey methods aboard a NOAA DeHavilland DHC-6 Twin Otter (TO) aircraft in the Gulf of Mexico, during the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS survey TO18Fa) from 10/12/2018 to 11/28/2018.
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-01T00:00:00.000+00:00
As part of the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted aerial surveys of the U.S. continental shelf...
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Search relevance: 53.61 | Views last month: 0
#7 Federal
Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of America, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-06-05T00:00:00.000+00:00
As part of the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) project, the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S....
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Search relevance: 53.51 | Views last month: 0
#8 Federal
Cetacean and sea turtle visual observations using line-transect survey methods aboard a NOAA DeHavilland DHC-6 Twin Otter (TO) aircraft in the Gulf of Mexico, during the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS survey TO18Wi) from 2018-01-18 to 2018-03-14 (NCEI Accession 0242273)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-01T00:00:00.000+00:00
As part of the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted aerial surveys of the U.S. continental shelf...
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Search relevance: 52.98 | Views last month: 0
#9 Federal
Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of America, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2303) from 2023-06-22 to 2023-08-14 (NCEI Accession 0290373)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-06-02T00:00:00.000+00:00
As part of the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) project, the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S....
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Search relevance: 51.50 | Views last month: 0
#10 Federal
AFSC/RACE/GAP/Palsson: Gulf of Alaska and Aleutian Islands Biennial Bottom Trawl Survey estimates of catch per unit effort, biomass, population at length, and associated tables
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2024-02-29T00:00:00.000+00:00
The GOA/AI Bottom Trawl Estimate database contains abundance estimates for the Alaska Biennial Bottom Trawl Surveys conducted in the Gulf of Alaska and the Aleutian Islands in alternate years. ...
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Search relevance: 47.74 | Views last month: 0
#11 Federal
EM2040 Water Column Sonar Data Collected During HB2102
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2022-06-30T00:00:00.000+00:00
The objectives of both legs are to: 1) Collect data needed to estimate the distribution and abundance of marine mammals, sea turtles and seabirds; 2) Collect vocalizations of...
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Search relevance: 47.73 | Views last month: 0
#12 Federal
Beluga whale (Delphinapterus leucas) aerial survey in Cook Inlet, Alaska, conducted by Alaska Fisheries Scientific Center, Marine Mammal Laboratory from 1993-06-02 to 2022-06-18 (NCEI Accession 0133936)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-08-04T00:00:00.000+00:00
The National Marine Fisheries Service (NMFS) has conducted aerial counts of Cook Inlet beluga whales (Delphinapterus leucas) from 1993 to 2022 (excluding 2013). Nearly all counts were conducted...
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Search relevance: 47.28 | Views last month: 0
#13 Federal
Aerial Survey Trend Counts of Harbor Seals in Coastal Alaska (1984-2006) - ADF&G
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2024-04-17T22:41:56.000+00:00
Aerial surveys were conducted during 1983–2006 in the Ketchikan, Sitka, Kodiak, and Bristol Bay areas of Alaska to estimate trends in abundance of harbor seals.
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Search relevance: 44.59 | Views last month: 0
#14 State
Smoothed Abundance (2022)
- Organization: State of Washington
- Updated: 2023-02-21
This gives the 2022 posterior median (the “best estimate”) from the model of the smoothed abundance for each year since listing for each population. Note: 2020 also attached.
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Search relevance: 44.19 | Views last month: 0
#15 Federal
AFSC/RACE/GAP/Rooper: Response of fish to drop camera systems
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-05-15T19:15:48.000+00:00
Assessing rockfish abundance in untrawlable habitats is a key area of study for the Alaska Fisheries Science Center. In order to accurately estimate abundance knowledge of rockfish response to the...
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Search relevance: 44.17 | Views last month: 0
#16 Federal
Patterns of association and distribution of estuarine-resident common bottlenose dolphins (Tursiops truncatus) in North Carolina, USA from Jan 8,2018 to Jan 26, 2018
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2022-01-01T00:00:00.000+00:00
The NOAA Southeast Fisheries Science Center conducted surveys within the southern North Carolina estuarine system from 2018-01-08 to 2018-01-26 to provide an updated estimate of abundance for the...
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Search relevance: 43.99 | Views last month: 0
#17 Federal
AFSC/RACE/GAP/Rooper: Triggered camera for determining fish height off bottom by species and size
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-05-15T19:15:48.000+00:00
Assessing rockfish abundance in untrawlable habitats is a key area of study for the Alaska Fisheries Science Center. In order to accurately estimate abundance knowledge of rockfish height off...
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Search relevance: 43.20 | Views last month: 0
#18 Federal
Point Sampling Data for Eelgrass (Zostera marina) and Seaweed Distribution and Abundance in Bays Adjacent to the Togiak National Wildlife Refuge, Alaska, 2008-2010
- Organization: Department of the Interior
- Updated: 2024-12-27T00:00:00Z
These data are in six tables relating to surveys of eelgrass beds in three bays adjacent to Togiak National Wildlife Refuge, in southwestern Alaska. The tables provide environmental conditions,...
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Search relevance: 42.49 | Views last month: 0
#19 Federal
Cetacean visual observations using line-transect survey methods onboard the NOAA Ship PISCES in the Gulf of Mexico from 2018-08-12 to 2018-10-05 (NCEI Accession 0244002)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-01T00:00:00.000+00:00
As part of the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted shipboard surveys of the U.S. oceanic waters of...
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Search relevance: 42.41 | Views last month: 0
#20 Federal
Point Sampling Data for Eelgrass (Zostera marina) and Seaweed Distribution and Abundance in Bays Adjacent to the Alaska Peninsula-Becharof National Wildlife Refuges, Alaska, 2010
- Organization: Department of the Interior
- Updated: 2024-12-26T00:00:00Z
These data are in six tables relating to surveys of eelgrass beds in Chignik Lagoon and Mud Bay, Alaska Peninsula-Becharof National Wildlife Refuges. The tables provide environmental conditions,...
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Search relevance: 42.29 | Views last month: 0

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